Evidence for determinism in ventricular fibrillation

Francis X. Witkowski, Katherine M. Kavanagh, Patricia A. Penkoske, Robert Plonsey, Mark L. Spano, William L. Ditto, Daniel T. Kaplan

Research output: Contribution to journalArticlepeer-review

66 Scopus citations


Using a recently formulated technique for in vivo cardiac transmembrane current estimation, we examined ventricular fibrillation for evidence of deterministic linear and nonlinear structure. Both unstable fixed point analysis and a newly formulated measure of nonlinear determinism indicated that ventricular fibrillation in vivo exhibits deterministic dynamics similar to those previously used in chaos control.

Original languageEnglish
Pages (from-to)1230-1233
Number of pages4
JournalPhysical Review Letters
Issue number6
StatePublished - 1995


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